Creating an executable .jar using Intellij

Question

I've got an app which is using few external jars like mail-1.4 and etc. And now I want to execute my app out of IDE (IntelliJ). Also I was following instruction File>Project Structure>Artifacts and so on, but my command prompt says:

Exception in thread "main" java.lang.SecurityException: Invalid signature file
igest for Manifest main attributes
        at sun.security.util.SignatureFileVerifier.processImpl(Unknown Source)
        at sun.security.util.SignatureFileVerifier.process(Unknown Source)
        at java.util.jar.JarVerifier.processEntry(Unknown Source)
        at java.util.jar.JarVerifier.update(Unknown Source)
        at java.util.jar.JarFile.initializeVerifier(Unknown Source)
        at java.util.jar.JarFile.getInputStream(Unknown Source)
        at sun.misc.URLClassPath$JarLoader$2.getInputStream(Unknown Source)
        at sun.misc.Resource.cachedInputStream(Unknown Source)
        at sun.misc.Resource.getByteBuffer(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$100(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)

My MANIFEST is almost empty:

Manifest-Version: 1.0
Main-Class: ru.tenet.smsc.SMSC

What is wrong?

Answer 1

One of the jars you extracted to the target jar was signed. The easiest way to fix it is to select "copy to the output directory and link via manifest" in the "Create JAR from Modules" dialog